To provide a self-traveling crusher capable of quickly starting work in situ by eliminating a transportation weight restriction during transportation to thereby improve disassembling and assembling properties, and to provide its dividing and assembling method.

The self-traveling crusher is provided for crushing an object to be crushed. The crusher includes a feeder 10 that is mounted to a body frame 3 of the self-traveling crusher so as to be detachable from the body frame 3, and can be self-supported when placed after the separation; and a hopper 11 that is mounted separably from the feeder 10 and is detachably arranged on the body frame from which the feeder 10 is removed.